Granted Patent
Utility
US 6,469,712 · App. 09/276,387
Projected audio for computer displays
Inventors:
Edwin James Hilpert, Jr., Michael A. Paolini
Patented Case
View Patent ↗
Granted: Oct 22, 2002
Filed: Mar 25, 1999
Inventors
Edwin James Hilpert, Jr.
Michael A. Paolini
Assignee (at issue)
International Business Machines Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.